biosafety level:
1 Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
references:
Kurath G, et al. Analysis of genetic heterogeneity within the type strain of satellite tobacco mosaic virus reveals several variants and a strong bias for G to A substitution mutations. Virology 189: 233-244, 1992. PubMed: 1604813 Mirkov TE, et al. Nucleotide sequence and translation of satellite tobacco mosaic virus RNA. Virology 170: 139-146, 1989. PubMed: 2718378 Gael Kurath, personal communication